the first Chilean to score in an FA Cup final since Newcastle United's George Robledo in 1952. He capped off his first season by winning Arsenal's Player of the Year award. Sánchez made his first appearance of the 2015–16 season as a substitute in Arsenal's 2–0 loss to West Ham United on the opening day of the 2015–16 Premier League. The following week, on his first start of the season, Sánchez had a header deflected into the Crystal Palace net by Damien Delaney to give Arsenal a 2–1 win at Selhurst Park. The goal, however, was later credited as an own goal by the Palace defender. On 26 September 2015, Sánchez ended a run of ten Premier League matches without a goal by scoring his first hat-trick for Arsenal in a 5–2 win at Leicester. This made him the first player to score hat-tricks in each of the Premier League, Serie A and La Liga. Sánchez then scored his first Champions League goal of the season a few days later, in a 3–2 loss to Olympiacos, latching onto a Theo Walcott cross to head beyond Olympiacos goalkeeper Roberto. The following league match, the last match before the international break, Sánchez scored for the third match in a row, scoring a brace in the first 20 minutes as Arsenal defeated Manchester United 3–0 at the Emirates Stadium and moved up to second place in the league. After the international break, Sánchez carried on his fine goalscoring form by netting against Watford at Vicarage Road, through a Mesut Özil assist, in a 3–0 Arsenal win, keeping Arsenal in second-place and grabbing his sixth goal in three Premier League matches for the club. Following a brief period on the sidelines due to injury, Sánchez returned to full first-team action on 30 January 2016 in the FA Cup fourth round tie against Burnley, scoring Arsenal's second goal of the game following a low cross from Alex Oxlade-Chamberlain. Sánchez netted his first Premier League goal since October with a goal in the North London derby against rivals Tottenham Hotspur, equalising for Arsenal in the 76th minute and keeping the Gunners' title challenge alive. During April 2016, Sánchez scored in four consecutive league matches, with goals against Watford, West Ham, Crystal Palace, and a brace against West Bromwich Albion. When launching their new kit for the 2016–17 season, Arsenal announced that Sánchez will change squad number